TFM-147-21-L-D SAMTEC Connector (Other) In Stock
Samtec TFM-147-21-L-D is a 94-position, 0.050-inch pitch dual-row high-reliability Tiger Eye terminal strip with right-angle through-hole tails for board-edge mounting. Designed for high-density mezzanine and daughter-card interconnects with gold-plated Tiger Eye contacts that provide superior wipe and retention. Available from stock worldwide for industrial, defense, and computing applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 94
- Lifecycle
- ACTIVE
- Datasheet
- TFM-147-21-L-D Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-147-21-L-D?
- 94-position dual-row terminal strip on ultra-fine 0.050 inch (1.27 mm) pitch for maximum pin density
- Tiger Eye contact design provides enhanced wiping action and reliable retention across hundreds of mating cycles
- Right-angle (L) through-hole tails enable board-edge mounting with mechanical stability against cable-pull forces
- Dual-row (D) layout halves footprint length versus single-row alternatives for space-constrained mezzanine designs
What is TFM-147-21-L-D used for?
The TFM-147-21-L-D is used in high-density mezzanine card interconnects for FPGA development boards, military embedded computing, and high-performance data acquisition systems where 94 signals must be routed in a minimal 0.050-inch pitch board-edge footprint. Its right-angle exit suits rack-mount chassis where cable or daughter-card mating occurs from the front or rear panel. Defense and aerospace applications rely on the Tiger Eye contact reliability for consistent signal integrity across wide temperature ranges and repeated mating cycles required during field maintenance.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-147-21-L-D datasheet?
TFM-147-21-L-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-147-21-L-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions does TFM-147-21-L-D provide and how are they distributed across the dual-row layout?
TFM-147-21-L-D provides 94 positions arranged as 2 rows of 47 pins on a 0.050-inch (1.27 mm) pitch. This dual-row configuration spans approximately 58 mm along the connector body length. Compared with a single-row 94-pin version at the same pitch, the dual-row layout reduces board-edge length by roughly 50%, which is critical for FPGA and mezzanine boards where multiple high-pin-count connectors compete for limited edge space.
What makes the Tiger Eye contact design of TFM-147-21-L-D superior to a standard stamped contact in high-reliability applications?
The Tiger Eye contact is a machined round-pin design that engages the mating socket with a wiping action across at least 4 contact points, compared with the single-contact-point wipe of a standard stamped pin. This multi-wipe geometry maintains contact resistance below 20 milliohms even when mating surfaces have light contamination or oxidation. The design is rated for over 200 mating cycles in MIL-grade applications, making it preferred in defense electronics and test equipment subjected to frequent maintenance cycles.
Is TFM-147-21-L-D compatible with Samtec SFM or CLM socket series for mezzanine stacking?
TFM-147-21-L-D is designed to mate with Samtec's SFM series socket strips on a 0.050-inch (1.27 mm) pitch. For a 94-position dual-row configuration, the matching socket would be an SFM-147 variant with the same row count and pitch. Board-to-board stack height depends on the SFM socket height selected, with options typically ranging from 5 mm to 20 mm, allowing designers to set the precise mezzanine gap needed for component clearance between boards.
When should TFM-147-21-L-D be chosen over a 0.100-inch pitch alternative for a new FPGA mezzanine design?
Choose TFM-147-21-L-D over a 0.100-inch pitch alternative when pin count exceeds 60 and PCB board-edge length is constrained to under 75 mm. At 0.050-inch pitch, the 94-position TFM-147 occupies approximately 58 mm versus about 120 mm for an equivalent 0.100-inch connector, saving over 60 mm of board edge. This trade-off is justified in FPGA designs where high I/O counts demand 0.050-inch pitch; for designs below 40 pins, 0.100-inch pitch offers easier PCB routing with lower-cost connectors.
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